JP6517867B2 - 数値制御装置 - Google Patents
数値制御装置 Download PDFInfo
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- JP6517867B2 JP6517867B2 JP2017070412A JP2017070412A JP6517867B2 JP 6517867 B2 JP6517867 B2 JP 6517867B2 JP 2017070412 A JP2017070412 A JP 2017070412A JP 2017070412 A JP2017070412 A JP 2017070412A JP 6517867 B2 JP6517867 B2 JP 6517867B2
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- JP
- Japan
- Prior art keywords
- spindle load
- load
- spindle
- pid control
- numerical control
- Prior art date
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- 238000000034 method Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 6
- 230000010354 integration Effects 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/406—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by monitoring or safety
- G05B19/4063—Monitoring general control system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/182—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
- G05B19/186—Generation of screw- or gearlike surfaces
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/404—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37226—Monitor condition of spindle, tool holder, transmit to nc controller
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/43—Speed, acceleration, deceleration control ADC
- G05B2219/43116—Calculate overshoot from supply voltage change, adapt motion
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Numerical Control (AREA)
- Automatic Control Of Machine Tools (AREA)
Description
S1:主軸負荷補正手段109には、周期Tごとに主軸負荷計測手段108が計測した現在の主軸負荷R(t)が入力される。主軸負荷補正手段109は、R(t)としきい値Rmとの関係がR(t)≧Rmであるか否かを判定する。しきい値Rmとは、PID制御が有効化される主軸負荷の下限値である。R(t)≧Rmでない場合はステップS2に遷移する。その他の場合はステップS3に遷移する。
すなわち図13下図に示すように主軸負荷の取得周期が制御周期よりも小さい場合は、ti’を計算に使う。これにより、図13上図に示すような主軸負荷の取得周期が制御周期と同じかそれよりも大きい場合に比べ、より正確に切削体積と負荷の値の同期をとることができる。
すなわち図14上図及び中図に示すように、周期TがiTF/60に対して大きくなるほど、数8による計算誤差は大きくなる。このような場合は図14下図に示すように、数9により送り量から積分値を直接求めるならば計算精度は担保できる。
101 指令プログラム解析手段
102 速度演算手段
103 補間手段
104 補間後加減速手段
105 サーボモータ制御手段
108 主軸負荷計測手段
109 主軸負荷補正手段
2 サーボモータ
3 スピンドルモータ
Claims (2)
- 主軸負荷を計測する主軸負荷計測手段と、前記主軸負荷に基づいて送り速度を調整するPID制御を行う速度演算手段と、を有する数値制御装置において、
前記主軸負荷と切削体積との比に基づく値をフィードバック値として算出する主軸負荷補正手段をさらに有し、
前記速度演算手段は、前記フィードバック値を用いて前記PID制御を行う、
数値制御装置。 - 前記主軸負荷補正手段は、工具とワークとの接触面を示す円弧の弦の長さと、前記工具の直径と、の比を用いて前記フィードバック値を算出する、
請求項1記載の数値制御装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017070412A JP6517867B2 (ja) | 2017-03-31 | 2017-03-31 | 数値制御装置 |
DE102018002425.4A DE102018002425B4 (de) | 2017-03-31 | 2018-03-23 | Numerische Regelungsvorrichtung |
US15/935,575 US10649434B2 (en) | 2017-03-31 | 2018-03-26 | Numerical controller |
CN201810286949.0A CN108693768B (zh) | 2017-03-31 | 2018-03-30 | 数值控制装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017070412A JP6517867B2 (ja) | 2017-03-31 | 2017-03-31 | 数値制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018173735A JP2018173735A (ja) | 2018-11-08 |
JP6517867B2 true JP6517867B2 (ja) | 2019-05-22 |
Family
ID=63670566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017070412A Active JP6517867B2 (ja) | 2017-03-31 | 2017-03-31 | 数値制御装置 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10649434B2 (ja) |
JP (1) | JP6517867B2 (ja) |
CN (1) | CN108693768B (ja) |
DE (1) | DE102018002425B4 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6940474B2 (ja) * | 2018-12-05 | 2021-09-29 | ファナック株式会社 | 工作機械 |
US20230376000A1 (en) * | 2020-03-25 | 2023-11-23 | Fanuc Corporation | Control device |
CN115291564B (zh) * | 2022-10-08 | 2023-01-10 | 成都飞机工业(集团)有限责任公司 | 一种基于切削体积的数控加工刀具寿命评价方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02180541A (ja) * | 1988-12-28 | 1990-07-13 | Yaskawa Electric Mfg Co Ltd | 数値制御装置のコーナーオーバーライド方式 |
JP2002323915A (ja) | 2001-04-25 | 2002-11-08 | Toshiba Mach Co Ltd | 数値制御装置 |
JP2005205517A (ja) * | 2004-01-21 | 2005-08-04 | Niigata Machine Techno Co Ltd | 工作機械の切削制御方法および切削制御装置 |
DE102005041175A1 (de) | 2005-08-31 | 2007-03-01 | Dr. Johannes Heidenhain Gmbh | Verfahren zur adaptiven Vorschubregelung an numerisch gesteuerten Werkzeugmaschinen |
JP4382123B2 (ja) * | 2007-12-13 | 2009-12-09 | ファナック株式会社 | 制御モード切り換え機能を有する数値制御装置 |
JP2010020704A (ja) * | 2008-07-14 | 2010-01-28 | Sinfonia Technology Co Ltd | 制御装置 |
US20100030366A1 (en) * | 2008-07-30 | 2010-02-04 | Jerry Gene Scherer | Method, system, and apparatus for on-demand integrated adaptive control of machining operations |
US20150375361A1 (en) | 2014-06-25 | 2015-12-31 | Rohm And Haas Electronic Materials Cmp Holdings, Inc. | Chemical mechanical polishing method |
JP2016092935A (ja) * | 2014-10-31 | 2016-05-23 | ファナック株式会社 | ゲイン自動調整支援装置 |
JP6333797B2 (ja) | 2015-11-26 | 2018-05-30 | ファナック株式会社 | 主軸負荷により送り速度を制御する数値制御装置 |
JP6514141B2 (ja) | 2016-04-15 | 2019-05-15 | ファナック株式会社 | フィードバック制御における出力値の制御を行う数値制御装置 |
-
2017
- 2017-03-31 JP JP2017070412A patent/JP6517867B2/ja active Active
-
2018
- 2018-03-23 DE DE102018002425.4A patent/DE102018002425B4/de active Active
- 2018-03-26 US US15/935,575 patent/US10649434B2/en active Active
- 2018-03-30 CN CN201810286949.0A patent/CN108693768B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE102018002425A1 (de) | 2018-10-31 |
US10649434B2 (en) | 2020-05-12 |
US20180284720A1 (en) | 2018-10-04 |
DE102018002425B4 (de) | 2023-05-11 |
JP2018173735A (ja) | 2018-11-08 |
CN108693768B (zh) | 2020-06-26 |
CN108693768A (zh) | 2018-10-23 |
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